Attachment for internal-combustion engines



A. J. ABEL.

ATTACHMENT FOR INTERNAL COMBUSTION ENGINES.

' APPLICATION FILED APR.9I I920.

I. 1,380,17 3. I Patented May 31,1921.

INVENTOR UNITED STATES PATENT OFFICE.

ARTHUR JAMES ABEL, 0F BROOKLYN, NEW YORK.

ATTACHMENT FQR INTERNAL-CUMBUSTION T 0 all whom it may concern:

Be it known that I, ARTHUR J. ABEL, a citizen oi? the United States, residing at Brooklyn. in the county of Kings and State of New York, have invented new and useful Improvements in Attachments for Tnternal-Coinbustion Engines, of which the following is a specification.

This invention relates to an attachment for internal combustion engines and has for its main object to provide means for returning a portion of the partly burned gases from the exhaust to the cylinder, thereby eifecting a saving in fuel.

1n the accompanying drawings Figure 1 is a detached side elevation of my improvement and the parts of an internal combustion engine to which the same is connected. V

Fig. 2 is a fragmentary sectional detail view showing the cylinder which forms part of my invention and themcans tor connecting the same to the muffler ot' the engine. v

Fig. 3 is a sectional view taken substantially in line 3-3 of Fig. 1, and

Fig. 1, is a detail view of one of the straps whereby my device is supported by the mutller.

Like reference characters refer to like parts in all the figures.

Referring now to Fig. 1, '1 represents the exhaust from an internal combustion engine, 2 represents a pipe leading to the muiiier 8. 4 represents a cylinder comprising a jacket formed of drawn tubing and provided at its ends with flanged disks5, said disks being provided with apertures near their center, one of said apertures leading to the open air and the other being connected by a pipe 6 (which may be a flexible tube if desired) to the carbureter 7. The cylinder 5 is provided with four screens 8 which may be formed by punching disks as shown in Fig. 3. These screens or perforated disks may be secured to the interior of the cylinder 1 in any suitable manner. Riveted to the cylinder a is a saddle 9 which is securely attached to a flexible saddle 10 in any suitable manner as for instance by theposts 11. The saddle 10 is firmly secured against the mufiler 3 by means of straps 12. A pipe 13 formed with a slight taper at its upper end connects the interior of the muflier with the interior of the cylin- Specifioation of Letters TBatent.v

Patented May 31, 1921.

Application filed April 9, 1920. Serial No. 372,695.

der at so as to conduct partly burned gases from the muiiier into the cylinder 1. This pipe 13 is beveled at its upper end so that it may me forced into the aperture in the muffler, thereby obtaining a tight fit. sheet of asbestos 14: is interposed between the saddle 10 and the muliler 3.

The straps 12, of which there are two pair, are secured to each other, in the following manner :-Each pair of straps comprises a short strap and a long one, the short strap cured to mufflers of different diameter by.

letting out or taken up the longer metal straps 12. The saddle 10 is flexible so that upon drawing the straps together the saddle with the mechanism depending therefrom, is securely seated on the muifier.

An auxiliary air intake is provided between the pipe 6 and'the carbureter 7 as shown in Fig. 1, said intake comprising a sleeve 19 secured to the pipe 6 and provided with holes and an over lying sleeve 20 also provided. with holes which may be brought to register with those in the sleeve 19 by turning the sleeve 20. A pin 21 secured to the sleeve 19 and positioned in a slot in the sleeve 20 limits the amount of rotation which may be given to the sleeve 20.

Briefly stated, the operation of the device is as i'ollows:-The exhaust gases from the engine pass through the pipe 2 into the handler 3 i from which a portion 01 such gases is conducted into the cylinder 4: where it is mixed with fresh air taken in through the aperture in the rear disk 5, the screens or perforated disks 8 preventing the passage of dust, carbon, etc.,' into the pipe 6 and the carbureter 7. In the carbureter 7 an added amount of vapor will be given to the charge to be conducted to the cylinder of the engine for subsequent explosion.

.While I have described what I consider to be the most desirable embodiment of my invention, it is obvious that the details thereof may be Varied Without departing from the spirit of my invention. 1 therefore do not Wish to be considered as limiting myself to the specific construction hereinshown nor to anything less than the Whole of my invention, as hereinbefore described and as hereinafter more particularly pointed out in the claims.

lVhat I claim as new and desire to secure by Letters-Patent is 1. In an attachment for internal combustion engines, the combination of a cylinder for mixing partly burned gases and fresh air, a saddle secured to said cylinder, a saddle adapted to be secured against the muiiier of an engine, means for securing said saddles to each other, and means ogerable to secure the second said saddle to the muffler of an engine.

2. In an attachment for internal combustion en ines, the combination of a cylinder for mixing partly burned gases and fresh air, a saddle, secured to said cylinder, a saddle adapted to be secured against the muffler of engine, adjustable means for securing said saddles to each other, and means operfor mixing partly burned gases and fresh air, a saddle secured to said cylinder, a saddle adapted to be secured against the muffler of an engine, adjustable means for securing said saddles to each other, and pairs of straps adapted to secure the second said saddle to the mufller of an engine.

l, In an attachment for internal combustion engines, the combination of a cylinder for mixing partly burned gases and fresh air, a saddle secured to said cylinder, a saddle adapted to be secured against the mufiler of an engine, adjustable means for securing said saddies to each other, pairs of straps adapted to secure the second said saddle to the mufller of an engine, said straps being provided with adjustable elements so as to accommodate themselves to different sizes of mufflers.

In testimony whereof I have aflixed my signature.

ARTHUR- AMES ABEL. 

